Trifluoroacetic acid → 5-amino-2-[2-(4-fluorophenyl)ethyl]-7-(1-(4-chlorophenoxyacetyl)pyrrolidin-3-(S)-ylamino)-thiazolo[5,4-d]pyrimidine

HRID 1507809Notes

Reaction equation

HRID 1507809 reaction equation
[NH2:1][C:2]1[N:3]=[C:4]([NH:20][C@H:21]2[CH2:25][CH2:24][N:23]([C:26](OC(C)(C)C)=[O:27])[CH2:22]2)[C:5]2[N:10]=[C:9]([CH2:11][CH2:12][C:13]3[CH:18]=[CH:17][C:16]([F:19])=[CH:15][CH:14]=3)[S:8][C:6]=2[N:7]=1.FC(F)(F)C(O)=O.C(N(C(C)C)CC)(C)C.[Cl:49][C:50]1[CH:60]=[CH:59][C:53]([O:54][CH2:55]C(Cl)=O)=[CH:52][CH:51]=1>ClCCl>[NH2:1][C:2]1[N:3]=[C:4]([NH:20][C@H:21]2[CH2:25][CH2:24][N:23]([C:26](=[O:27])[CH2:55][O:54][C:53]3[CH:59]=[CH:60][C:50]([Cl:49])=[CH:51][CH:52]=3)[CH2:22]2)[C:5]2[N:10]=[C:9]([CH2:11][CH2:12][C:13]3[CH:14]=[CH:15][C:16]([F:19])=[CH:17][CH:18]=3)[S:8][C:6]=2[N:7]=1

Participants

6

Reactant 4

HCID 6422Trifluoroacetic acidHCID 77771p-Chlorophenoxyacetyl chlorideHCID 81531DiisopropylethylamineHCID 46916848HCID 46916848, compound

Product 1

HCID 469168495-amino-2-[2-(4-fluorophenyl)ethyl]-7-(1-(4-chlorophenoxyacetyl)pyrrolidin-3-(S)-ylamino)-thiazolo[5,4-d]pyrimidineYield 46.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 5-amino-2-[2-(4-fluorophenyl)ethyl]-7-(1-tert-butoxycarbonyl-pyrrolidin-3-(S)-ylamino)-thiazolo[5,4-d]pyrimidine (70 mg, 0.15 mmol) in dichloromethane (1 ml) was added trifluoroacetic acid (1 ml). The reaction mixture was stirred at room temperature for 2 hours after which the solvents were removed in vacuo. The residue was dissolved in dichloromethane (3 ml) and diisopropylethylamine (1.5 mmol, 252 μL) and 4-chlorophenoxyacetyl chloride (0.17 mmol) were added. The reaction mixture was stirred at room temperature for 16 hours whereupon the solvent was removed in vacuo. The resulting residue was purified by flash chromatography on silica, the mobile phase being a mixture of methanol and dichloromethane (in a ratio gradually ranging from 100% CH2Cl2 to 1.5% CH3OH in CH2Cl2), yielding the pure title compound (37 mg) which was characterized by its mass spectrum: MS m/z (%): 527 ([M+H]+, 100).

Workup

  1. customwere removed in vacuo
  2. dissolutionThe residue was dissolved in dichloromethane (3 ml)
  3. stirringThe reaction mixture was stirred at room temperature for 16 hours whereupon the solvent
  4. customwas removed in vacuo
  5. customThe resulting residue was purified by flash chromatography on silica
  6. additiona mixture of methanol and dichloromethane (in a ratio

Sources & evidence

ORD record
ord-80871a9ee02f48b0950486f355c1e97e
Source dataset
uspto-grants-2015_12
Patent number
US09221822B2

Reaction notes

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